| Date: Tue, 31 May 2005 15:16:37 +0800
| From: "Chongkai Zhu" <mathematica@xxxxxxxxx>
|
| I mentioned Mathematica, only for the "inexact number" part of it,
| not the "symbolic manipluation" part of it. For example, if you
| want to save the square root of 2 as an inexact number, you can
| write:
|
| v1=1.414
|
| the precision or the inexact number v1 is 4 (decimal digits);
|
| but you can also write
|
| v2=1.414213562373095048801688724209698078569671875376948073176679737990732478462107038850387534327641573
|
| and v2 will get precision 100 (all these digits are saved into memory).
So in a Scheme implementation which has "arbitrarily big" precision,
how many digits is (sqrt 2)? How many digits is (sin 7/5)?